Can I suggest too, in order to make your Deadlockable VT-VZ Commodore/HSV more secure, that you also bypass the fuse that powers the security system with a remote mounted hidden second fuse and make the original a dummy, I had my wheels stolen by some morons in Aug 2003. They broke the passenger side front window, bypassed the security by pulling the fuse and then proceeded to steal items from the car and then removed the useless Holden/HSV supplied locknuts and took the wheels. Had this fuse been bypassed, there would have been a good chance of me being woken at 3 in the morning and seeing a couple of idiots running down the road after a big surprise, rather than being woken by a neighbour to be told my wheels are missing. Also, on the lock nut issue, Wheel King in Moorabbin have a set of Swedish Lock nuts with a Titanium head which, to their reports, have never been cracked, they fit over a standard nut and when attampted to be removed by anything but the original socket, grab on tighter. All I can say is 2 years on, so far so good!! They cost about $120 but worth every cent!